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30311240041 = 70439430319
BaseRepresentation
bin11100001110101100…
…001101000101101001
32220020102221112110001
4130032230031011221
5444034134140131
621531431023001
72122066201135
oct341654150551
986212845401
1030311240041
11119449a5305
125a5b20aa61
132b209c9cc4
1416779063c5
15bc6108261
hex70eb0d169

30311240041 has 4 divisors (see below), whose sum is σ = 30311740800. Its totient is φ = 30310739284.

The previous prime is 30311239997. The next prime is 30311240051. The reversal of 30311240041 is 14004211303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30311240041 - 27 = 30311239913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30311240051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144721 + ... + 285598.

It is an arithmetic number, because the mean of its divisors is an integer number (7577935200).

Almost surely, 230311240041 is an apocalyptic number.

It is an amenable number.

30311240041 is a deficient number, since it is larger than the sum of its proper divisors (500759).

30311240041 is an equidigital number, since it uses as much as digits as its factorization.

30311240041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500758.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30311240041 its reverse (14004211303), we get a palindrome (44315451344).

The spelling of 30311240041 in words is "thirty billion, three hundred eleven million, two hundred forty thousand, forty-one".

Divisors: 1 70439 430319 30311240041